<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .box{
            width: 1400px;
            height: 650px;
            position: relative;
            background-color: grey;
        }
        .box1{
            width: 450px;
            height: 300px;
            /*background-color: red;*/
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }
        div{
            width: 100px;
            height: 100px;
        }
        .img1,.img2,.img3,.img4,.img5,.img6{
            background-image: url("./img/erji.png");
            background-repeat: no-repeat;
            background-size: cover;
            float: left;
            border-radius: 10px;
            margin-left: 10px;
            margin-top: 10px;
        }
    </style>
</head>
<body>
<div class="box">
    <h1 style="text-align: center">自然风光画廊</h1>
    <div class="box1">
        <div class="img1"></div>
        <div class="img2"></div>
        <div class="img3"></div>
        <div class="img4"></div>
        <div class="img5"></div>
        <div class="img6"></div>
    </div>
</div>
</body>
</html>